
<!DOCTYPE html>
<html style="height: 100%">
<head>
    <meta charset="utf-8">

</head>
<body style="height: 100%; margin: 0">
<div id="container" style="height: 100%">
    <div style="width: 100%; height: 100%; background-color: #00aaee">
        <h1>班级页面</h1>
    </div>
</div>
</body>
</html>
